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Finding the Fourth Proportional to 531.51, 797.28 and 453.98

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Solution

The fourth proportional to 531.51, 797.28 and 453.98 is: 680.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.51 : 797.28 = 453.98 : x
  2. Step 2: Convert to fraction form
    531.51/797.28 = 453.98/x
  3. Step 3: Cross multiply
    531.51x = 797.28 × 453.98
  4. Step 4: Simplify right side
    531.51x = 361,949.47
  5. Step 5: Solve for x
    x = 361,949.47/531.51
  6. Step 6: Final answer
    x = 680.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.